<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			#d{
				background-color: #FF0000;
				height: 1500px;
				background-image: url(../img/bjy.jpg);
				background-repeat: no-repeat;
				background-position: center;
			}
			#t:before{
				content: '一定';
			}
			#t:after{
				content: '加油';
			}
			#tt:hover{
				color: #00FFFF;
				cursor: pointer;
				font-size: 20px;
			}
			#tt:active{
				color: #FF0000;
			
			}
		</style>
	</head>
	<body>
		<div id="d">
			
		</div>
		<p id="t">好好学习</p>
		<a id="tt">点我</a>
	</body>
</html>
